01244nam--2200397---450-9900003561702033160035617USA010035617(ALEPH)000035617USA01003561720010312d1982----km-y0itay0103----baengUS||||||||001yyCodes, ciphers, and computersan introduction to information securityBruce BosworthRochelle ParkHayden Book Companyc. 1982259 p.ill.23 cm2001001-------2001CrittografiaElaboratori elettoniciControllo degli accessiParole d'ordine001.5436BOSWORTH,Bruce543384ITsalbcISBD990000356170203316001.543 6 BOS15110001.54300105070BKSCIPATTY9020010312USA011310PATTY9020010312USA011314PATTY9020010312USA011315PATTY9020010320USA01172820020403USA011643PATRY9020040406USA011625Codes, ciphers, and computers876391UNISA